. >> public speaker: good evening, commissioners, i'm keith barda. a live about a block away. for about ten 10 years i have enjoyed these trees. as said earlier today, this is really becoming a really new urban residential neighborhood and this is one of the few places really west of golden gate park that is the most beautiful canopy of trees and i purposely walked through that area to enjoy those trees all four seasons long. they are beautiful trees. it would be a travesty to have these torn down and have to wait 20 years for something 1/3 of it's size. i looked at the arbor day foundation and they truly are another expert like the dpw over trees and say that mature trees contribute to our health and office workers watt view of trees report significantly less stress and satisfaction of their job. one provides oxygen for four people and one mature tree will produce carbon dioxide for 100,000 miles. trees will also reduce crime. in san francisco it has been a tree designation for years. i would ask you to not have these trees destroyed. tha